- `(let ((,buffer (make-fields-buffer2)))
- (with-open-file
- (,ustream (umls-pathname ,filename)
- :direction :input :if-exists :overwrite)
- (do ((,line (read-buffered-fields ,buffer ,ustream #\| ,eof)
- (read-buffered-fields ,buffer ,ustream #\| ,eof)))
- ((eq ,line ,eof) t)
- ,@body)))))
+ `(let ((,buffer (make-fields-buffer2))
+ (,eof (gensym "EOFSYM-")))
+ (with-open-file
+ (,ustream (umls-pathname ,filename)
+ :direction :input :if-exists :overwrite)
+ (do ((,line (read-buffered-fields ,buffer ,ustream #\| ,eof)
+ (read-buffered-fields ,buffer ,ustream #\| ,eof)))
+ ((eq ,line ,eof) t)
+ ,@body)))))